<template>
  <div>

    <div style="margin-top: 0px ">
      <el-input style="width: 200px" placeholder="请输入名称" suffix-icon="el-icon-search" v-model="name"></el-input>
      <el-button1211 class="ml-5" type="primary" @click="load">搜索</el-button1211>
      <el-button type="warning" @click="reset">重置</el-button>
    </div>

    <div style="margin: 10px 0">
      <el-button type="primary" @click="handleAdd">新增<i class="el-icon-circle-plus-outline"></i></el-button>
      <el-button type="danger" @click="delBatch">批量删除<i class="el-icon-remove-outline"></i></el-button>
    </div>

    <el-table :data="tableData" border stripe :header-cell-class-name="headerBg"
              @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55"></el-table-column>
      <el-table-column prop="id" label="ID" width="80"></el-table-column>
      <el-table-column prop="name" label="名称"></el-table-column>
      <el-table-column prop="flag" label="唯一标识"></el-table-column>
      <el-table-column prop="description" label="描述"></el-table-column>
      <el-table-column label="操作" width="300">
        <template slot-scope="scope">
          <el-button type="info" @click="selectMenu(scope.row)">分配菜单 <i class="el-icon-menu"></i></el-button>
          <el-button type="success" @click="handleEdit(scope.row)">编辑<i class="el-icon-edit"></i></el-button>
          <el-popconfirm
              class="ml-10"
              confirm-button-text='确定'
              cancel-button-text='我再考虑一下'
              icon="el-icon-info"
              icon-color="red"
              title="您确定删除吗？"
              @confirm="del(scope.row.id)"
          >
            <el-button type="danger" slot="reference">删除<i class="el-icon-remove-outline"></i></el-button>
          </el-popconfirm>
        </template>
      </el-table-column>
    </el-table>

    <div style="padding: 10px 0">
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="pageNum"
          :page-sizes="[2, 5, 10, 20]"
          :page-size="pageSize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
      </el-pagination>
    </div>

    <el-dialog title="角色信息" :visible.sync="dialogFormVisible" width="30%" :close-on-click-modal="false">
      <!--                                                 :close-on-click-modal="false"输入信息旁边的空白不会退出输入信息模式         -->
      <el-form label-width="120" size="small">
        <el-form-item label="名称">
          <el-input v-model="form.name" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="唯一标识">
          <el-input v-model="form.flag" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="描述">
          <el-input v-model="form.description" autocomplete="off"></el-input>
        </el-form-item>
      </el-form>

      <div slot="footer" class="dialog-footer">
        <el-button @click="cancel">取 消</el-button>
        <el-button type="primary" @click="save">确 定</el-button>
      </div>
    </el-dialog>

    <el-dialog title="菜单分配" :visible.sync="menuDialogVis" width="30%" :close-on-click-modal="false">
      <el-tree
          :props="props"
          :data="menuData"
          show-checkbox
          node-key="id"
          ref="tree"
          :default-expanded-keys="expends"
          :default-checked-keys="checks">
        <!--expanded-keys默认展开  checked-keys默认选中-->

        <span class="custom-tree-node" slot-scope="{ node, data }">
        <span><i :class="data.icon"/>{{ data.name }}</span>
        </span>
      </el-tree>


      <div slot="footer" class="dialog-footer">
        <el-button @click="menuDialogVis = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleMenu">确 定</el-button>
      </div>
    </el-dialog>

  </div>
</template>
<script>

export default {
  name: "Role",
  data() {
    return {
      tableData: [],  //表格数据
      total: 0,
      pageNum: 1,
      pageSize: 10,
      name: "",
      form: {}, //form表单
      dialogFormVisible: false,  //弹窗
      menuDialogVis: false,
      multipleSelection: [],
      menuData: [],
      props: {
        label: 'name',//对应分配菜单里的文字
      },
      expends: [],
      checks: [],
      roleId: 0,
      roleFlag: 0,

      headerBg: 'headerBg'
    }
  },
  created() {//加载时触发
    //请求分页查询数据
    this.load()
  },
  methods: {
    fileUploadSuccess(res) {
      console.log(res)
      this.form.url = res;
    },
    load() {
      this.request.get("/role/page", {
        params: {
          pageNum: this.pageNum,
          pageSize: this.pageSize,
          name: this.name
        }
      }).then(res => {
        console.log(res.data)
        this.tableData = res.data.records
        this.total = res.data.total
      })
    },
    save() {
      this.request.post("/role/", this.form).then(res => {
        if (res.data) {
          this.$message.success("保存成功")
          this.dialogFormVisible = false
          this.load()
        } else {
          this.$message.error("保存失败")
        }
      })
    },
    saveRoleMenu() {
      console.log(this.$refs.tree.getCheckedKeys());
      this.request.post("/role/roleMenu/" + this.roleId, this.$refs.tree.getCheckedKeys()).then(res => {
        if (res.code === '200') {
          this.$message.success("绑定成功")
          this.menuDialogVis = false

          if (this.roleFlag === 'ROLE_ADMIN') {
            //角色绑定菜单成功就清空缓存重新登录
            //  调用vue/src/store/index.js里的方法，清空缓存
            this.$store.commit("logout")
          }


        } else {
          this.$message.error(res.msg)
        }
      })

    },
    handleAdd() {
      this.dialogFormVisible = true
      this.form = {}
    },
    handleEdit(row) {
      this.form = row
      this.dialogFormVisible = true
      this.$nextTick(() => {
      })
    },
    cancel() {  //取消按钮
      this.dialogFormVisible = false
      this.load()
    },
    del(id) {
      this.request.delete("/role/" + id).then(res => {
        if (res.data) {
          this.$message.success("删除成功")
          this.load()
        } else {
          this.$message.error("删除失败")
        }
      })
    },
    handleSelectionChange(val) {//处理选择更改
      console.log()
      this.multipleSelection = val
    },
    delBatch() {
      let ids = this.multipleSelection.map(v => v.id)  // [1.2.3]
      this.request.post("/role/del/batch", ids).then(res => {
        if (res.data) {
          this.$message.success("批量删除成功")
          this.load()
        } else {
          this.$message.error("批量删除失败")
        }
      })
    },
    reset() {//重置
      this.name = ""
      this.load()
    },
    handleSizeChange(pageSize) {
      console.log(pageSize)
      this.pageSize = pageSize
      this.load()
    },
    handleCurrentChange(pageNum) {
      console.log(pageNum)
      this.pageNum = pageNum
      this.load()
    },


    // //菜单
    // async selectMenu(role) {
    //   this.roleId = role.id
    //   this.roleFlag = role.flag
    //
    //   //请求菜单数据
    //   this.request.get("/menu").then(res => {
    //     this.menuData = res.data
    //
    //     //把后台返回的菜单数据处理成id数组
    //     this.expends = this.menuData.map(v => v.id)
    //   })
    //   //
    //
    //   // this.request.get("/role/roleMenu/" + this.roleId).then(res => {
    //   //   this.checks = res.data
    //   // })角色子菜单分配勾选会把父级菜单下面全部勾选,下面是解决方法
    //   this.request.get("/role/roleMenu/" + this.roleId).then(res => {
    //     this.checks = res.data
    //
    //     this.request.get("/menu/ids").then(r => {//查询所有菜单id的接口
    //       const ids = r.data
    //       ids.forEach(id => {
    //         if (!this.checks.includes(id)) {
    //           this.$nextTick(()=>{
    //             this.$refs.tree.setChecked(id,null,false)
    //           })
    //         }
    //       })
    //       this.menuDialogVis = true
    //     })
    //   })
    // },
    async selectMenu(role) {
      // 设置菜单对话框可见
      this.menuDialogVis = true;
      // 获取当前角色的ID,唯一标识
      this.roleId = role.id;
      this.roleFlag = role.flag;

      try {
        // 并发地获取菜单数据和角色菜单数据
        const [menuRes, roleMenuRes] = await Promise.all([
          // 请求所有菜单数据
          this.request.get("/menu"),
          // 请求当前角色的菜单数据
          this.request.get("/role/roleMenu/" + role.id),
        ]);
        // 存储所有菜单数据
        this.menuData = menuRes.data;
        // 将菜单数据中的ID提取出来，用于设置默认展开项
        this.expends = this.menuData.map((v) => v.id);
        // 存储当前角色已选中的菜单项
        this.checks = roleMenuRes.data;

        // 请求所有菜单的ID列表
        this.request.get("/menu/ids").then(r => {
          const ids = r.data
          // 遍历所有菜单ID，如果不在角色已选中的ID列表中，则取消勾选
          ids.forEach(id => {
            if (!this.checks.includes(id)){
              // 使用 $refs.tree.setChecked 方法取消勾选
              this.$refs.tree.setChecked(id,null,false)
            }
          })
        })
      } catch (error) {
        // 处理获取菜单数据或角色菜单数据时的错误
        console.error("获取菜单数据或角色菜单数据时出错:", error);
      }
    },
  }
}
</script>
<style>
.headerBg {
  background: #eee !important;

}
</style>